Re: [PATCH] drm/i915: use upstream version of header tests

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Quoting Jani Nikula (2019-07-29 15:08:47)
> Throw out our local hacks of header tests now that the more generic
> kbuild versions are upstream.
> 
> At least for now, continue to keep the header tests behind
> CONFIG_DRM_I915_WERROR=y knob.
> 
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> 
> ---
> 
> Technically the upstream versions are only in drm-tip, and not in dinq
> until a backmerge, but I think it's good enough. I don't think it should
> mess anything up.

> diff --git a/drivers/gpu/drm/i915/Kconfig.debug b/drivers/gpu/drm/i915/Kconfig.debug
> index 4cdc0181a093..87a38c6aaa41 100644
> --- a/drivers/gpu/drm/i915/Kconfig.debug
> +++ b/drivers/gpu/drm/i915/Kconfig.debug
> @@ -7,6 +7,7 @@ config DRM_I915_WERROR
>          # We use the dependency on !COMPILE_TEST to not be enabled in
>          # allmodconfig or allyesconfig configurations
>          depends on !COMPILE_TEST
> +       select HEADER_TEST
>          default n
>          help
>            Add -Werror to the build flags for (and only for) i915.ko.
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index 42c17a7b0cb0..331b19cc8247 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -32,7 +32,7 @@ subdir-ccflags-y += \
>         $(call as-instr,movntdqa (%eax)$(comma)%xmm0,-DCONFIG_AS_MOVNTDQA)
>  
>  # Extra header tests
> -include $(src)/Makefile.header-test
> +header-test-pattern-$(CONFIG_DRM_I915_WERROR) := *.h

But won't that actually break dinq compilation until the backmerge? For
those of us that compile with WERROR.
-Chris
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